2006–07 National Division One

2006–07 National Division One
Countries	England
Champions	Leeds Tykes
Runners-up	Earth Titans
Relegated	Otley and Waterloo
Attendance	365,849 (average 1,570 per match)
Highest attendance	7,105 Leeds Tykes at home to Earth Titans on 22 April 2007
Lowest attendance	308 Pertemps Bees at home to Plymouth Albion on 3 February 2007
Top point scorer	Leigh Hinton (Leeds Tykes) 302 points
Top try scorer	Nicolas Sestaret (Plymouth Albion) 28 tries
← 2005–06 2007–08 →

The 2006–07 National Division One was the 20th full season of rugby union within the second tier of the English league system, currently known as the RFU Championship. This season saw the league increased from 14 to 16 teams with new teams including Leeds Tykes (relegated from the 2005-06 Guinness Premiership), as well as Moseley and Waterloo who were promoted from 2005–06 National Division Two. Other changes saw Exeter Chiefs move from the County Ground to Sandy Park, a modern stadium with room for further expansion, Nottingham moved from Ireland Avenue to groundshare with Notts County at the much larger Meadow Lane and finally Cornish Pirates moved from their temporary ground at Kenwyn in Truro to the larger (and more permanent) Recreation Ground owned by Camborne RFC.

Leeds Tykes bounced back by winning the National Division One title at the first attempt and returned to the Guinness Premiership for season 2007–08.Earth Titans finished in second place, and Otley and Waterloo were relegated to the 2007–08 National Division Two.